Wire-straightening machine



1 645,072 Oct. 11, 1927. H. PRYM WIRE STRAIGHTENING MACHINE Filed June 2, 1926 bwezzim":

I Patented 0... 11, 1921.

PATENT OFFICE.

HANS PBYM, OI STOLIBEBG, GEBKA N'Y.

wrnn-srmrenrnnme mom Application filed June 2, 1926, Serial No. 118,215, and in Germany an ao, 1925.

This invention relates to a wire straightening machine with a rotating wire straight: ening spindle, and consists in that the spindle is also moved forward and backward, thereby straightening the wire coming from the wire drawing machines during the forward as well as the backward movement of the straightening spindle. The wire is freed from the twist and at the same time straightened and can at once be worked the invention is illustrated in the accom ganying drawing in which Fig. 1 shows the evice partly in longitudinal section and partly in front elevation, Fig. 2 isa plan, and- Figure 3 is a side elevation viewed from the right side. I

The usual straightening spindle a carries in its enlarged part b five adjustable straightening pins 6 for the straightening of the wire 9. The spindle a is mounted .in ball-bearings (1 within a pipe-like case 0 disposed in a case J and fastened therein by the cover e. The end of the driving shaft f is also mounted in the cased and transfers its rotation to the straightening spindle by medium of the toothed wheels 9, h, i, and k. The shaft 7 furthermore carriesa cam disk Zbordering a roll m of a double-armed lever m; adjustably mounted on a pivot W. The free end of the lever 11 is forked as at n and engages a box 0 connected by a ball-bearing o with the straightening spindle a. The box 0 is slidable on rails p located beneath the box 0.

A double-armed lever 1' rotatable about 1- is swung inthe known manner by a cam disk 7. and carries at its free end a device r to feed and draw forward the wire g.

The machine works as follows;

The straightening spindle a is rotated by the shaft 7 by means of the pinion k and the toothed wheels 9, h, and z',-and at the same time moved forward and backward by the lever 'n, guided with its roll m in the cam disk Z and engaging withthe other end' a with the box 0.. This automatic forward. and backward movement of the straightem.

"ing spindle a when passing wire g'in the direction indicated by the arrows in Figs. 1 and. 2 through the straightening pins 6 a wire.

A construction of a device according to;

removes the twist of the unstraightened he lever 1" drawing the wire stepby-stepis moved forward together with the forward movement of the lever 11., thereb facihtatlng'the passing of the wire through the straightening pins 6. When the. lever a and the straigl t'ening spindle a are movmg backward, t e feedln lever 1' first stops and holds the wire g wit the clamping de-' vice r. Therefore the wire 9 is freed from the twist on a length dependent from the swlnglng of the lever n. The straightening spindle a has5000 revolutions and the lever 72 makes 550 oscillations er minute; and the extent of swinging of the lever n can be varied respectively. adapted to the length of the wire to be fed by varying the turning-point n of the lever 'n.

L-In a wire straightening machine, a rotating spindle carrying straightening means, a double-armed lever for positively reciprocating, said straightening spindle in opposite directions, and means to feed the wire during the forward movement of said spindle.

2. In a wire straightening machine, a driven shaft, a cam disk on said shaft, an adjustable lever engagin with said cam disk at one end, a. rotat ng straightening spindle, means to connect the rotating spindle with the other end of the lever, and means to' feed wire during the forward. movement of said strai htemng spindle.

i 3. In a wire straig tening machine, a driven-shaft, a cam disk on said shaft, an adjustable lever. engaging with said cam disk' at one' end, a rotatmg straightening spindle, means to connect the rotating spindle with the other end of the lever, another cam disk on said shaft, and wire' pulling e5 means-controlled by said cam disk.

4. In a wire straightening machine a" rotating" spindle carrying straightening.

wire duringthe forward movement of the spindle, and wire pulling means operating means,-means.to positively move the spindle forward and-backward," means to feed the in timed relation with thereciprocation of the spindle. P t I, In testimony whereof I aflix my signa-. ture,:

' H NS Pam 

